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Editorial Team
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Asked: 2026-05-24T03:17:11+00:00

When I try to run this code it force closes. And I apologize in

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When I try to run this code it force closes. And I apologize in advance because I am a noob at java.

package com.MrNom;

import android.app.Activity;
import android.os.Bundle;

public class NomActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }

}

This was red in LogCat right before it force closed.

07-29 18:59:40.626: ERROR/AndroidRuntime(347): FATAL EXCEPTION: main
07-29 18:59:40.626: ERROR/AndroidRuntime(347): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.MrNom/com.MrNom.Mr.NomActivity}: java.lang.ClassNotFoundException: com.MrNom.Mr.NomActivity in loader dalvik.system.PathClassLoader[/data/app/com.MrNom-1.apk]
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2585)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at android.app.ActivityThread.access$2300(ActivityThread.java:125)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at android.os.Handler.dispatchMessage(Handler.java:99)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at android.os.Looper.loop(Looper.java:123)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at android.app.ActivityThread.main(ActivityThread.java:4627)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at java.lang.reflect.Method.invokeNative(Native Method)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at java.lang.reflect.Method.invoke(Method.java:521)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at dalvik.system.NativeStart.main(Native Method)
07-29 18:59:40.626: ERROR/AndroidRuntime(347): Caused by: java.lang.ClassNotFoundException: com.MrNom.Mr.NomActivity in loader dalvik.system.PathClassLoader[/data/app/com.MrNom-1.apk]
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:243)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at java.lang.ClassLoader.loadClass(ClassLoader.java:573)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at java.lang.ClassLoader.loadClass(ClassLoader.java:532)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
07-29 18:59:40.626: ERROR/AndroidRuntime(347):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2577)
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1 Answer

  1. Editorial Team

    In your AndroidManifest.xml, find where you declare that activity and change it’s name property from “com.MrNom.Mr.NomActivity” to “com.MrNom.NomActivity”.

    As you can see from your activity class, it’s in package “com.MrNom”, not “com.MrNom.Mr”

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